If you’re bored this week and feel like swingin’ — I mean seriously getting down — with some hard hitting (and intelligently composed) grooves, look no further than Hot 8 Brass Band’s show at WOW Hall. The New Orleans group has musical roots going back to grade school, and the chemistry they maintain today is an unequivocal product of that fact. In balmy Louisiana, traditional brass music has become so deeply embedded in the culture that images of sweltering New Orleans clubs are difficult to envision without that hot music. Every member of Hot 8 cut his teeth in the heart of that action, and they’ve got the funky, jazzy, heart-felt, soulful chops to prove it.